Commonly occurring product ions for PS(24:0/20:1(11E)) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
900.6699Precursor ion [M-H]-
813.6379Loss of serine from precursor ion
521.3613Loss of sn2 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
503.3507Neutral loss of sn2 RCOOH group and serine from [M-H]-
463.2830Loss of sn1 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
445.2725Neutral loss of sn1 RCOOH group and serine from [M-H]-
367.3582sn1 RCOO- ion
309.2799sn2 RCOO- ion
152.9958Glycerol-3-phosphate ion with loss of H2O
96.9696H2PO4- ion (from phosphate)
78.9591PO3- ion (from phosphate)
Note: Structures of product ions may represent one of a number of possible isobaric molecules in some cases